Mold-material-projecting machine



May 29, 1923.

E. P. LANGWORTHY MOLD MATERIAL PROJECTING MACHINE Filed June 15, 1920 2Sheets-Sheet 1 Fatented May 29, 1923.

EDWARD P. LANGWORTHY, OF BUFFALO, NEW YORK, ASSIGNOR TO i I IOANRADIATOR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 01 NEW JERSEY.

uonn-mraman-raoanormo mac 1:

Application filed June 15, 1920. Serial No. 389,101.

To all whom it may concern:

Be it known that I, EDWARD P. LANG- WORTHY, a citizen of the UnitedStates, residing at Buffalo, in the county of Erie and State of NewYork, have invented certain new and useful Improvements in Mold-Material-Projecting Mach1nes, of which the following is a full, clear,concise, and exact description, reference being had to the accompanyingdrawings, forming a part of pro ect above the belt or conveyor so thatthe this specification. My invention relates to lmprovements in devicesfor projecting mold material into One of the objects ofmy lnvention 1sto provide an apparatus for pro ectmg the mold material into molds inthe form of small compact wads projected at a high velocity whereby thesand wlll be properly packed into the mold.

Another object of my invention is to provide an apparatus of the abovecharacter which will project the sand with the least spreadin orthrowing of loose sand and which Wlll require the minimum power foroperation.

For the purpose of disclosmg my nvention I have illustrated oneembodiment thereof in the accompanying drawings in which:

Fig. 1 is an elevation showing my machine in operative position.

Fig. 2 is a sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a plan view of the machine.

Fig. 4 is a transverse sectional view of the rotary projector.

Fig. 5 is a side elevatlon with the cover portion broken away to showthe construction of the rotor; and

Fig.6 is a perspective view of one of the blades.

In the embodiment illustrated, I provide a mast or support 1 which maybe sultably braced as by braces 2. At the top of this mast there is anI-beam 3 having at its rear end bolted thereto a pair of arms 4 which inturn are secured to a bifurcated support 5 extending from a sleeve 6pivotally mounted on thepost 1. At the forward end of the I-beam 3 thereis likewise provided a bifurcated extension 7. Between'the ends of theextension 7 there is mounted ,a pulley orbelt conveyor pre erably formsthe bottom 1 of a trough formed by a pair of side mem- ;bers 12 securedby suitable braces or supports 13 to the I-beam. These side memberscontents thereof will not be spilled off on the side.- The forward endof the arm is held in horizontal osition b means of suitable braces 14whic are pre erably connected to the bifurcated arms 7 at the pointwhere the pulley 8 is journaled. The arm 3, due to its sleeve connectionwith the mast, may be swung in a horizontal plane, the braces 14 beingsecured to a rotating sleeve 14 to permit the entire structure to swing.

At the outer end of the arm 3 is mounted a depending link member 16 fromwhich depends a swinging frame. This frame preferably consists, asshown, of a vertical arm 17 and horizontal tric motor 19 is secure onthe platform and the top of the motor frame is secured by a Iillustrated, particularly in Figs. 4 and -5, this projector comprises adished wheel 21 mounted on a. shaft 22, journaled in the lower end ofthe arm 17. A belt 23, passing over a pulley 24 on the shaft 22 and apulley 25 onthe shaft of the motor 19 serves to drive the projector in acounter clock-wise direction with the parts in position as illustratedin Fig. 5. The periphery of the wheel is formed wlth a straight portion26 and at suitable intervals on the inner face of the wheel are formed aseries of radial ribs 27 which are obliquely dis osed and whichpreferably increase in wi th toward the periphery' of the wheel.Transversely extending from the straight portion 26 of thelarlydisposed'flange 29 through which be ts latform 18. An election u on thefiange 26. A stationary cover 31 enc oses the periphery of the wheel andI this cover is provided with sides 32 and 33 range of movement ifdesired.

which extend artially down on each side of the wheel su stantially theheight of the paddles so that that ortion of the wheel is snugly andcomplete y enclosed. This casing is preferably made in two sections topermit its being assembled on the wheel and is secured to the arm 17 bymeans of suitable braces 34. This casing, as is shown in Fig. 5, is openas at 35 and tangentially with the wheel, the cover is extended to formvertical walls 36 and 37, providing a spout through which the moldmaterial may be projected.

Secured over the front face of the casing is a cover plate 38 whichtogether with the casing encloses the wheel. This cover plate 38 isprovided with an aperture 39 through which projects the lower end of achute 40, the upper end of which is immediately below the outer end ofthe conveyor belt 11 to receive the material therefrom. This chute issecured in position by any suitable brace, as for instance, a brace 41,on the horizontal arm 17. It is thus seen that the chute and head are somounted that the lower end of the chute moves in whichever direction theprojector moves and that the projector, due to the universal joint 20may be swung to any position to direct the material into different partsof the mold. Furthermore, due

to the fact that the arm 3 is pivoted at 6,'

this arm can also be swung to permit a wider In operation the materialis deposited on the rear end of the traveling belt 11 by any suitableapparatus, such, for instance, as a chute leadingfrom a hopper or achute leading from a conveyor, or in any other desired manner. Thematerial is preferably fed at a definite rate and is carried forward bythe conveyor and deposited into the chute 40 by which it is conveyed tothe rotatin projector and delivered to the projector su stantially atthe center of the dished wheel, therefore the stream or column of sandis not struck as hard a blow by the blades or ribs 27 as it would be ifit were fed transversely to the blades 28. The sand being fed at or nearthe center of the rotary projecting wheel is picked up and b centrifugalforce thrown outwardly towar the casing 31, the ribs 27 aiding in thisoperation although even if the ribs 27 are left out, the friction of theside of the wheel would have the same tendency to throw the sand outtoward the periphery of the wheel. As the sand is proected bycentrifugal force toward the peripheig of the wheel, it is also carriedaroun at the periphery by the paddles 28, being held from furthercentrifugal projection by the casing 31 and compacted into wads againstthe paddles or blades and the casing being finally projected downwardlythrough this opening 35.

Having thus described my invention, what I claim as new and desire toobtain by Letters Patent is:

1. A molding machine comprising a support, a rotary member mountedthereon having a recessed central portion and a horizontally -projectingperipheral flange portion extending therefrom, tapering radiallydisposedblades in said recessed central portion and curved blades fixed uponsaid horizontal portion adjacent to the outer ends of said taperingblades, a casin enclosing said rotary member and provide with a centralinlet, means for delivering mold material to said inlet; said casinghaving an outlet, and means for actuating said rotary member to pro ectthe mold material through said outlet, substantially as specified.

2. A molding machine comprising a support, a rotary member mountedthereon hav- 1ng a recessed central portion and a horizontallyprojecting peripheral flange portion extending therefrom, taperingradially-disposed blades in said recessed central portion havlng theirwider ends extending out of said recessed C1portion, and curved bladesfixed upon sai horizontal portion adjacent to the outer projecting endsof said tapering blades, a casln enclosing said rota member and provi edwith a centrally isposed inlet, a chute having one end extending intosaid centrally disposed inlet opening for delivering mold materialcentrally to said rotary member, said casing having a tangential outlet,and means for actuating said rotary member to project the mold materialoutwardly through the outlet in said casing, substantially as specified.

3. In a molding machine the combination with a rotary disk having aradial rib on one face thereof and a transversely project- 1ng bladenear its periphery, of a station ary arcuate casing wa l peripherallydisposed about said disk and means for delivering mold material to saiddisk at substantially its center.

4. In a molding machine the combination with a vertically extendingsupport, a horizontally dis osed arm mounted on said support, a mol ingmaterial projector comprising a rotary disk secured at the outer end ofsaid. arm and having a universal connection with said arm to permit thesame to swmg in any direction, and a chute movable with said disk,deliverin molding material to said disk at substantiafiy its center.

5. In a molding machine, in combination with a stationary support, of ahorizontally 12 its lower end comprisinga casing, a rotary membertherein, centrally disposed taperin at the point where the support isjoined to blades on said rotary member, and curved the arm, and meansfor connecting said moperipherally disposed blades on said rotary torwith said projector for operating the 1% member arranged adjacent to theends of same.

a saidoentrally disposed blades, a motor for In witness whereof, I havehereunto subdrrvmg sard pro ector mounted on said supscribed my name.

port above said projector, and substantially EDWARD P. LANGWORTHY.

